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Acquisition Earn-out - Additional Information (Detail) - USD ($)
6 Months Ended
Jul. 31, 2015
Jun. 30, 2017
Jun. 24, 2016
Dec. 30, 2016
Business Acquisition [Line Items]        
Change in the fair value of the contingent earn out   $ 619,000 $ 628,000  
Miconex [Member]        
Business Acquisition [Line Items]        
Percentage of shareholding interest acquired 100.00%      
Cash paid for acquisition $ 15,600,000      
Business acquisition, potential cash earn-out payments   900,000   $ 300,000
Business acquisition, potential cash payments period 2 years      
Change in the fair value of the contingent earn out   $ 600,000    
Miconex [Member] | Maximum [Member]        
Business Acquisition [Line Items]        
Business acquisition, potential cash earn-out payments $ 4,000,000     $ 2,000,000
Miconex [Member] | Common Stock [Member]        
Business Acquisition [Line Items]        
Shares of newly issued common stock 500,000